I lost track of it but HP, as co-architects, had its own compiler team working on it. I think SGI also had efforts to target ia64 as well.
But the EPIC (Explicitly Parallel Instruction Computing) didn't really catch on.
VLIW would need recompilation on each new chip but EPIC promised it would still run.
In the compiler world, these HP compiler folks are leading compiler teams/orgs at ~all the tech companies now, while almost none of the Intel compiler people seem to be around.
Are you sure about that? If my memory serves, a lot of the Intel compiler people were transferred from HP? At least in the Fortran world, the Fortran frontend for the Intel compiler traces it's lineage back to DEC Fortran (for VAX and later Alpha) -> Compaq Visual Fortran (for Windows) -> Intel Fortran.
https://en.wikipedia.org/wiki/Explicitly_parallel_instructio...